Concentrator



Sept. 25 1923.

D. F. PLATNER CONCENTRATOR Filed July 25 1922 3 Sheets-Sheet 3 Sept. 25 1923. Y 1,469,019

' D. F. PLATNER C0NCENTRATOR Filed y 25 1922 s Sheets-Sheet- 5 I gwuen coz 235 63 04 W0 E PLAT/v.67?

W 7 ii deaessssswos.

' Application me a i iy 25;

Be it knownth'at LiDavm .PLA'rnnn, .a citizen of the UnitedStates, residingiat'San: Diego, county of San Diego; and Stateof, California, have. invented anew. and useful Improvements in Concentrators, of. which the following is a specification This invention. relates to machines for parating nietalliferous values from (i-rushed ore. gravel and the lnze, and.particularly to that typeof -machine in.which the ma terial is subjected to vibratory 1 movement" to obtain concentration} H j I The object of the presentinyention is to generally improve and simplify LdeViCes of the'charricter described; to provide anon e em traitor over which the crushed-ore, s eened gr ave-l, or tl e likeis caumd to trays and there subjected to a vibrating-or concentratingaction; to provide riffles of novel form in which the concentrates are caught or trapped; top rovide means forpreventing packing of -the' material While subjectedtc' the concentrating action; to provide means for increasing the rate of flow or travel of the material undergoing concentration by angular adjustment of. the co'ncentrator, and to provide a' structure-whereby cleaning up or removal of the :concentrates isifacilitated. Further 7- One form whicli 'myinvention may as sume is exemplified in the followingdescrip tion andillustrated in the accompanying drawings, in which ig. 1 is a-fr'ont elevation disclosing the preferred form ofthedevice H Fig. 2 is a side elevation of thesame.

Fig. 3 is a longitudinal section through objects will hereinafterjap the-gravity box. y 1. I Fig. 4 is a perspectiveyiew of the screen,- Fig. 5 is a central sectional View of 2. I Fig; dis a top plan view of Rig. 3 with the screen removed to show the interior con;

struction of the box, a J

Referring more particularly to the' dr a'wings', A indicates a mainframe embodying a pair of standards or jarring-"posts 11'. These posts are'rigidly supported; in an upright position by base timbers-1l2braces1at and a top cross beam 15.j-Disposedv between the posts 11 is a pair of movable uprights 16 and 16, the lowerends of which are supported in recesses 19? formed in the base timbers 12. Such mounting'permits moyement of the upper ends of the standards 1922. 7 Serial 13103577975 f with relationtothe-jarringposts; rl sshoivn the uprights 16- are connected together. at

their uppen ends by cross-bar 17 which cooperates with a" -pair of cross-bars .18. and 19. in supporting-agravity separator or-concentratirig tab;le*20. .LT'he cross-bars 18" and1 19are supported by cleats2linhorizontal position adjacent the top'of verticalmembers 221 These latterwmeinbers are rigidly se-. curedat their lower ends to'thebase mem bers'12.

As shown in the drawings the cross-bar.

17 assumes anfintermediate; positionj Therefore,.1t 1s obvious-that theconcentratlngumt l8 is supportedtat a slightlygreaterheight than'the cross bar 19, while thezcross-bar' i will be supported on an incline." The cleats 1 V 21 are vremovably. secured :t o jthe vertical members 22 so that the height'of the .cross the angle of incline of bars 18 and 19 may be adjusted. IThis,.of

This is accomplished through: the medium of a driving sprocket 24:. which is connected by achain'25 to a driven sprocket .26. The

latter is'secured on a shaft 27,.whichis sup} ported in.bearing's 2.8,"the shaft-QZqextend ing parallel. to" the. top wcrosssbeam, :15.-

Mounted onthe'oppositeendjofthe shaft 27 is a' crank29, the latter. beingiconnected by a connectingirod 30 to one. end of ashorizontal link. 31. The other end offthis link is lea connected to theiupp'er end ofanapproximately centrally pivotedjleve-r '32., i Th'is lever islpivot'ally mounted. attthe end ofa j rigid bracket The lower. end of the lever isconnectedby a connecting link" 34, tot-he standard. 16 ltis seen that the connecting I link mentioned asses: throu h an onelnin c L t:

35 formed in the jarringpostcadjacent the standard 16 It should be obviousthat rotatingfniovementimparted to the driving sprocket 24,1 either manual effort or mechanical means, will drive the shaft. 27

and consequently the crank 29. Movement of the crank ill'im'part vertical reciprocating movement to the connecting rod 30,

' vided aids in the separating operation in the concentrator. The standards 16 and 16 are guided for the movement mentioned by guides 16 as shown;

Referring to Figs. 3 and 4, where the construction of the concentrator is more clearly illustrated, it is seen that it is provided with plurality of transversely arranged riiiies 38, which are constructed and arranged as shown. These riiiles are preferably formed of sheet metal bent to form a rectangular'trough with a flat bottom and straight sides 39 and 40. The upper end of the side 39 is bent outwardly, as at 421, and upwardly at d2. To prevent the material being treated from packing between the riilles, a plurality of longitudinally extending wires or rods. l3 are provided. These wires are passed through the rifiies and are secured thereto in any suitable manner. It is seen that the wires are arranged in three rows which are spaced equidistance apart across the concentrator.

When treating placer gravel, it hasbeen found necessary to provide the concentrator with a screening member 47. This member consists of an open rectangular frame 48 having a screen 49-at the top and a screen 50 of smaller mesh at the bottom.

Each side of the screen frame is provided with pins 51 whichare centrally located and adapted to lit in slots 23 formed in the short uprights 23." The frame may be removably secured to the top of the concentrator in any suitable manner. It should be stated that when treating crushed ore, it is not necessary to employ the screen.

In operation, the device is constructed and assembled as shown in the drawings. The material to be treated is fed to the upper end of the screen through a hopper or other suitable means. Power may be applied to drive the sprocket 2?, which, as described, will transmit reciprocating movement to the concentrator through the me dium. of the several mechanical elements mentioned. As the concentrator is tilted at 'a desired angle. the j arring action will cause the material to travel longitudinally of the concentrator and the heavier mineral prodnets to settle to the bottom of the concentrator, whilev the lighter material or gangue passes over the rifHes and discharges and packing of the material, while subjected to concentration, is prevented by the use of the wire rods a3 as these serve the function of agitators and thereby maintain the material in the state of agitation, which is of considerable importance as it permits separation and settling of the concentrates, and as, previously stated prevents packing ot both concentrates and pulp. In actual operation: it may be stated that it is immaterial whether the material to be concentrated is handled dry or wet as the action in either instance will be similar, that is longitudinal flow or travel of the material is not dependent upon a flowing stream of water, but is caused by the longitudinal incline of the concentrator and the lateral vibratory movement transmitted thereto. 7

By referring to Fig. 3, it will be noted that the concentrating table is lined with metal as indicated "at 60. This metal lining is in reality nothing more or less than a removable metalbox which carries the ritfie members and the rods 43. The metal box is trough-shaped and oneormore 01. said boxes may be placed within the concentrator proper, the number depending entirely upon the length of the concentrator and the materialhandled. When cleaning up, it is only necessary to remove the metal boxes and these may then be placed over a pan or tub and the concentrates removed by applying water, for instance with a hose or otherwise. may then be panned down'or otherwise treated and the metal, boxes replaced in the concentrator for further use.

The concentrates thus removed From the foregoing it will be seen that.

the device here disclosed, while simple in constructlon and operation, provldes a very" eiiicient separator of large capacity which will be continuous in: operation.

While the device here shown is'more or less specifically illustrated, I wish it understood thatvarious changes in form and pro portion may be resorted to within the scope of the appended claims, similarly that the materials and finish-of the several parts'einployed may be such as the experience and judgment of the manufacturer may dictate or various uses may demand.

Having thus described my invention, what I claim and desire to secure by Letters Patent is p I 1. In a concentrator, a box, alining therefor comprising side and end walls, a plurality of longitudinally extending rods carried by the lining, and transversely disposed riflies therein supported-son the rods, the said aligning rifiies and rods being removable as a unit from thebox.

riiiie 4 having a pair or" base members, said members having a recess formed therein, a pair of standards, the lower ends of which are loosely disposed in said recesses, 21 cross-bar connecting 'd standards, a concentrating box centrally supported by said cross-bar, adjustable supports for each end of said box secured to said frame, and n wens connectedto one of said standards for impartinganovement to said standards to vibrate said con centrating box.

3. In a concentrator, riilies arranged a plurality of 10n 'ndinally extending-vertically spaced rods extending through said a box, a series of 1 concenrator, a box, a series of runes extending crosswise of the box, and a. p'ara ity of vertically spaced rods mounted in the box and extending through said rillies.

5. In a concentrator, a box, a series of p-shapcd riillesdisposed crosswise of the L iorm upper L-shaped parts, and a plurality of rods extending at right angles to said rililes and passing through the same.

6. In a concentrator, a box, series of ti-shaped riilies arranged transversely in transveresly in the box and 0 one of the sides of the rifti s beingextended ontwarc'ily and then uovardly to.

to form upper L-shaped parts, and a plural ity of rows of rods extending longitudinal- 1y of the box and through the riftles,

T. A concentrator comprlsinga frame em 7 bodying apair ot'jarring posts and a pair of base members, the latter havin sockets formed therein, a pair of standards inounte ed for rocking movement with their lower enclsinsaid sockets, a crossbar connecting. said standards, a concentrator box mounted centrally on said cross-bar, a'front and rear crossbar having vertical supports secured to imp-art rocking movement to said standards to reciprocatethe box,'sa1d'standards being so located that they will Contact with the jarring posts dnringsuch rocking movement to jar said box. f 8. In a concentrator, a' box, a series of tep-shaped r'iiiles hex-tending transversely;

hereof, and a plurality of series of verticall spaced and aligned rods passing through ti ie. sa 5 d rifiiles.

9. In a concentrator, a box, a seriesof step-shaped V rilhes extending transversely thereof, and agitating means carried by the rifiies and extending at right angles thereto;

, 1 DAVID E. PLATNE-R, 1 

